Beetle L4-1781cc 1.8L Turbo (APH) (1999)
Fuel Injector: Testing and Inspection
Fuel Injectors, Checking
With Manufacturer's Scan Tool
Fuel Injectors, Checking
Special tools, test equipment and auxiliary items
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Test box V.A.G 1598/31
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Multimeter (Fluke 83 or equivalent)
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Diode test lamp V.A.G 1527
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Adapter set V.A.G 1594
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Wiring diagram
Check conditions
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Fuses 28 and 32 must be OK
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Engine speed sensor must be OK, checking See: Computers and Control Systems/Testing and Inspection/Component Tests and General
Diagnostics/Engine Speed (RPM) Sensor, Checking
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The battery voltage must be at least 11.5 V
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Fuel pump relay must be OK
Checking resistance of injectors
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Pull connectors off injectors.